Question

What energy transformation takes place in a battery?

Answer 1

Chemical Energy

Explanation:

Chemical energy is the energy which is stored in the battery as potential energy which is used up when required.

Answer 2

The energy in a battery is stored in the form of chemical energy. When I use this battery to operate a toy car, the energy is converted to mechanical energy. There is conservation of energy principle exist and only there is one form of energy getting converted to another form.